Spring door-closing appliances

ABSTRACT

1,118,530. Spring door-closing appliances with covered ends. WILLIAM NEWMAN &amp; SONS Ltd. 15 June, 1967 [20 Dec., 1966], No. 56851/66. Heading E2M. The invention relates to spring door-closing appliances comprising an elongated hollow body 1 containing a reciprocating check piston and a spring 2. the piston being operatively coupled to a vertical operating spindle 3 which is connected to the fixed door frame via two jointed together control arms (one shown by 4), the hollow body having one end closed by a removable plug 7, and flanges or lugs 5, 5 being provided at opposite ends of the body to enable the latter to be secured to the door by means of screws; and is characterized in that removable cover members 11/12 and 11/12 (e.g. of polypropylene) are applied to the ends of the hollow body to conceal the screw holes 6 and also to cover the end faces of the body, said cover members having projections which are resiliently sprung into recesses in the said body, whereby a neat and clean-cut appearance is obtained.

Jan. 14, 1969 H, c, AD 3,421,176

SPRING DOOR-CLOSING APPLIANCES Filed July 5, 1967 Sheet of 5 Jan. 14, 1969 H. c. SHEAD 3,421,176

SPRING DOOR-CLOSING APPLIANCES Filed July 5, 1967 Sheet 2 of 5 F/G.3. F/G. 4.

Jan. 14, 1969 c, SHEAD I 3,421,176

SPRING DOOR-CLOSING APPLIANCES Filed July 5, 1967 sneei 3 of 5 United States Patent 56,851/ 66 US. Cl. 1649 Int. Cl. E051 l/00; Ef 3/00 7 Claims ABSTRACT OF THE DISCLOSURE The present invention relates to a spring door closing appliance comprising an elongated hollow body having a check piston and a spring therein, according to which said piston and said vertical operable spindle are adapted to be coupled to each other, one end of said body being adapted to be closed by a removable plug. In conformity with the present invention, flanges provided at opposite ends of said hollow body have screw holes therein which are adapted to be concealed by cover members which also cover the end faces of said hollow body, said cover members having projections resiliently sprung into recesses in the said hollow body.

This invention relates to spring door-closing appliances of the kind comprising an elongated hollow body containing a reciprocating check piston and a spring, the piston being operatively coupled to a vertical operating spindle which is connected to the fixed door frame through the medium of two-joined-together control arms, the hollow body having one of its ends closed by a removable plug formed with a central recess, and flanges or lugs being provided at opposite ends of the body to enable the latter to be secured to the face of a door by means of screws.

The object of the present invention is to provide simple means for concealing the end recess and the screw holes in the end flanges or lugs, thus giving a neat and clean-cut appearance to the appliance.

According to the invention, in a door-closing appliance of the kind referred to, removable cover members are applied to the ends of the hollow body to conceal the screw holes in the end flanges or lugs and also, to cover the end faces of the body, said cover members having projections which are resiliently sprung into recesses in the said body.

Each cover is conveniently provided with a projection on a face which covers the screw holes, said projection being engaged with a recess in an end flange or lug in which the screw holes are formed, whilst another face of the cover is applied to an adjacent end of the hollow body and has a projection engaging a recess in said end.

The covers may be made of plastics material having a certain degree of resiliency.

FIGURE 1 of the accompanying drawings is a front elevation of a door closer to which the present invention is applied, with the two end portions shown in section, and the end covers, according to the invention, shown separated from the body of the door closer.

FIGURE 2 is a plan view of the closer with the ends in section showing the end covers (also in section) fitted in place.

FIGURE 3 is a section on line IIIIII, FIGURE 2, looking towards one end of the body of the closer.

FIGURE 4 is a horizontal section through one end of the body and through the corresponding end cover, the section being taken on line IV--IV, FIGURE 3,

FIGURE 5 is a plan view of one of the cover members.

3,421,176 Patented Jan. 14, 1969 FIGURE 6 is a front elevation of said cover member.

FIGURE 7 is a perspective view of one end of the closer body and of the cover which is to be applied thereto.

FIGURE 8 is a similar perspective view of the other end of the body but showing a modified form of cover.

FIGURE 9 is a horizontal section on line IXIX, FIGURE 8.

FIGURE 10 is a vertical section on line XX, FIG- URE 9.

Referring to FIGURES 1 to 7 of the said drawings, the spring door closer therein shown and to which the invention is applied comprises a hollow elongated and horizontal body .1 of substantially rectangular contour in cross-section, said body containing in its cylindrical interior the usual spring 2 operative upon a check piston (not shown) that is coupled to a vertical spindle 3 connected to the fixed door frame by the usual two-jointedtogether control arms, one of which is shown at 4. The ends of the body 1 are provided with integral flanges or lugs 5, 5, flush with the back face of the body and having in them screw holes 6 for receiving screws by means of which the appliances may be secured to the face of a door near its upper edge.

The left hand end of the body 1 (as viewed from the front) is initially open but in use is closed by a removable screw plug 7 screwed into the end flush with the end face of the body, and in this plug is a central circular recess 8 giving access to an adjustable check-regulating screw 9. At the other end of the body the interior is closed by a solid end wall 10.

According to the invention, the screw holes 6 in the lugs 5, and the screws in said holes, as well as the recess 8 in the one end of the body, are shrouded and concealed from view by means of two detachable cover members made from a plastics material. Each cover member consists of an angular body composed of two flange parts .11, 12, nearly at right angles to one another, namely, a base part 11 which is of the same size as the lugs 5 and is applied over the screw holes 6 so as to cover these holes and each entire lug 5; anda second flange part 12 which is of the same size and shape as the end faces of the body 1, so that when applied to said end faces these flanges cover and conceal the same, including the recess 8 in the one end.

In order to secure the covers in place, the flange part 11 of each cover is provided at the middle with an integral projection in the form of a peg 13 which is engageable in a hole 14 provided in each end lug 5, whilst the other flange .12 is provided, near its upper corner with a similar peg 15 that is engageable with a hole 16 provided in each end face of the body 1, the hole in the end having the plug 7 being disposed outside the circumference of said plug.

To fit each cover member, it is slightly tilted whilst the peg 13 on the base flange 11 is entered into the hole 14 in lug 5, and the peg 15 on the flange 12 is sprung into the hole 16 in the end walls with a snap action as a result of the resiliency of the plastics material composing the covers.

The cover members may be readily removed when required by prising the pegs out of the holes.

In the modification shown in FIGURES 8 to 10, the flange 5 at the end of body 1 and having the screw holes 6 in it, is provided with an elongated vertical groove 17 in place of a small hole, and the base flnage 11 of the cover member is provided with an arcuate lip or flange 18 for engaging said groove 17, whilst the other flange 12 is provided with peg 15 engaging hole 16 in the end of the body 1, as in the previously described form.

Instead of the covers being of angle section, as shown in the drawings, they may be of solid triangular, rectangular or other section.

I claim:

1. A spring door-closing appliance comprising an elongated hollow bod-y, a check piston and a spring contained within said body, means for operatively coupling said piston to a vertical operating spindle, a removable plug closing an end of the body, flanges at opposite ends of the said body having screw holes therein, and cover members applied to the body to conceal the screw holes in the end flanges and also to cover the end faces of the body, said cover members having projections which are resiliently sprung into recesses in the said body.

2. A spring door-closing appliance as claimed in claim 1, wherein each cover member is provided with a projection on a face that covers the screw holes, said projection being engaged with a recess in the end flange in which the screw holes are formed, whilst another face of the cover member is applied to an adjacent end of the hollow body and has a projection engaging a recess in said end.

3. A door-closing appliance as claimed in claim 2, wherein the face of the cover member that covers the screw holes is provided with a peg engageable with a hole in the end flange or lug of the body, whilst the face that covers the end of the body is provided with a peg engageable in a hole in the end of the body.

4. A door-closing appliance as claimed in claim 3, wherein the peg on the face of the cover memiber that covers the screw holes is at the middle of said face, and the peg on the other face is located near the top outer corner of the face of the cover member that is applied to the end of the body.

5. A door-closing appliance as claimed in claim 2, wherein the cover members, including the projections thereon, are formed of a plastics material.

6. A door-closing appliance as claimed in claim 2, wherein the projection on the face of the cover member that covers the screw holes consists of a flange engaging a groove in the end flange of the body of the appliance.

7. A door-closing appliance as claimed in claim 2, wherein the projections on each cover member and the recesses in the end flanges and body of the appliance are so located that after a projection on one face has been engaged with a recess the projection on the other face has to be sprung into engagement with its correspoding recess.

References Cited UNITED STATES PATENTS 146,270 1/1874 OKeefe 16l48 1,047,253 12/1912 Leeds l6l48 2,271,098 1/1942 Schmidt 16-49 2,994,906 8/1961 Check 16-51 BOBBY R. GAY, Primary Examiner.

JAMES L. KOHNEN, Assistant Examiner. 

